#define _CRT_SECURE_NO_WARNINGS  1

#include<stdio.h>
#include<math.h>


int main()
{
	int n = 0;
	scanf("%d", &n);
	int i = 0;
	int j = 1;
	int k = 1;
	int sum = 0;
	while (1)
	{
		for (i = 0; i < n; i++)
		{
			sum += j;
			j += 2;
		}
		if (sum == pow(n, 3))
			break;
		sum = 0;
		j = k + 2;
		k += 2;
	}
	for (i = 0; i < n; i++)
	{
		printf("%d", k);
		if(i<n-1)
			printf("+");
		k += 2;
	}
	return 0;
}